Oil-cake-stripping machine.



N. 739,479. PATBNTBD SEPT. 2z, 1903.

B. C. BISBEE.

OIL CAKE STRIPPING MACHINE. APPLICATION FILED JUNE l6, '1901. BENEWHD TBB'. 24,-1903. l0 IODEL. I 4y SHEETS-SHEET 4.

' @www ew.

Tu: wams Ferias no., wooln'nc wAsumcToN. n. :4

UNITED STATES Patented September 22, 1903.

'PATENT OFFICE.

EDGAR C. BISBEE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE-HALF TO CHARLES F. ELMES, OF COOK COUNTY, ILLINOIS. I

OIL-CAKE-STRIPPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 739,479, dated September 22, 1903. Application led J une 6, 1901. Renewed February 24, 190.3. Serial No. 144,833. (No model.)

To a/ZZ whom it may concern.;

` Be it known that 1, EDGAR C. B1sBEE,a citizen'of the United States, residing in Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Oil-Cake-Stripping Machines, of which the following is a specification.

My invention relates to improvements in oil-cake-stripping machines, and is adapted to strip cloth fromthe cakes of oil-meal, eject the cakes from the press-truck, and remove the press-plates as each cake is ejected. Y This machine is adapted to`operate in conjunction with the machines described in my applications for Letters Patent, Serial No. 63,362, filed June 6, 1901, for an oil-cakeforming apparatus, and Serial No. 65,090, filed June 19, 1901, for an oil-cake press.

In the accompanying drawings, forming part of this specification, Figure 1 is a side elevation of my improved oil-cake-strippingv machine, portions of the frame being shown broken away to 'expose the working parts more clearly to view. Fig. 2 is a plan view of my invention. Fig. 3 is a longitudinal section taken on the line X X of Fig. 2. Fig.

4 is a similar section showing the carrier forward. Fig. 5 is a detail section taken on the same line,lshowiug the carrier returning.v

Fig. 6 is a view looking toward one end of the machine, and Fig. 7 is a view looking toward its other end.

`In the drawings let A represent the frame of the oil-'cake-st-ripping machine; B, the

truck for holding the oil-cakes to be stripped; C, the truck for receiving the press-plates as they are removed from the oil-cakes; D, the ejecting mechanism; E, the cloth-take-up mechanism, and F the drivemechanism for operating the parts of the machine. The

' trucks B and C are of substantially the same construction described in the applications for patents referred to above. The truck C,

which has been emptied in the cake-forming apparatus, is rolled on the track 2 into one end of the frame A, where it is locked by the cross-bar 3. The truck B is rolledinto the other end o f the frame onV the same track and is also locked in the frame by the bar 4.

l This truck is loaded with cakes having pressplates between and cloth wrapped around each cake, (shown in the drawings,) as received from the oil-cake press after the oil hasbeen extracted from the meal.

The ejecting mechanism D vconsists of the carriage 5, which slides backward and forward in the slots 6 of the longitudinal bars V7 of the frame. The carriage is operated by means of the bracket 8, attached to the carriage by bolts 9 and formed with the 'vertical slot l10. 12 are arranged and journalediby their respective shafts 13 and 14 on the frame A, as shown in Fig. 2. The sprocket-chains 15 and 16 travel on these sprocket-wheels and carry the drive-bar G, which passes freely through the slot in the bracket of the carriage. When revolving in thedirection of the arrows shown in Fig. 1, this drive-bar reciprocates the carriage over the trucks. The carriage has the ejector I, attached by the supportingbars 17. This ejector is'arranged horizon- The pairs ofsprocket-wheels 11 andv tally in the frame and is made concave at-lS l 'drive-shaft and pulley 21 and 22 by the chains 2.3 and sprockets 24. The drive-shaft is journaled at 25 on the frame of the machine.i

The cloth-take-upmechanism consists of the cloth-roller 26, which is journaled in the arms 27 of the truck C. This roller carries the pinion 28, whichmeshes with the gear 29.

The shaft 30, whichv is journaled at`31 on the frame, carries this gear, also the disk 32, with the spring-dog 33 upon its face. .This dog is adapted to engage the teethl of theratchetwheel' 34 when the shaft 36'is revolving forward, as indicated by the yarrow in Fig. 1. The shaft 35 is journaled at 36 on the frame and carries the drum 37, to which the weighted cable 38 is attached. VThis shaftalso carries the gear 39, which meshes with the rack 40. This rack slides in the bearings 40' and is formed with the shoulder 41, against which the arm 42 on the carriage is adapted to impinge when the carriage is moving forward.

IOO

As the rack is moved forward by thl carriage the shaft 35 is revolved backward by means of the gear 39, and the cable 38 is wound upon the drum 37 by the movement of the `rack. The spring-dog 33 then sweeps over theratchet-wheel34. Asthecarriage returns the weighted cable revolves the shaft 35 forward and the dog engages the ratchet-wheel, thus causing the cloth R to wrap upon the revolving roller 26 in the direction indicated by the arrows. The rack is returned by the weighted cable until the cloth has been stripped from the cake last-ejected and wound upon the roller. The arm 42 continues the return stroke from the shoulder until the carriage has receded and started on a new stroke. This construction compensates for the varying difference between the travel of the carriage and the diameter of the roll of cloth, which latter is constantly increasing as the cloth is stripped from the cakes. The cloth travels over the idle roll 43 and between the pairof idle rolls 44, all of which are journaled and arranged in the frame, as shown in the drawings. i

The method of regulating the height of the stack of cakes J and the plates K is substantially the same as described in my application for Letters Patent for oil-cake-forming apparatus above referred to, in which the mechanism L for adjusting the stack of cakes is termed the cake-holding mechanism and the mechanism M for receiving the pressplates the press-plate-holding mechanism.

The cake-holdingmechanism consists of the truck B, which is journaled on the wheels 45 and limited in its forward and backward movement in the machine by the stop 46 and removable cross-bar 4. The stack of cakes wrapped in cloth and separated by pressplates as received from the oil-press is adapted to rest upon the shoulders 47 of the truck B. (See Fig. 6.) The head 48 is raised one step-t'. e., the thickness of the cake plus that of the press-plate and cloth wrapped around the cake-during each full stroke of the carriage, so as to feed a cake and press-plate to the ejector. The head is moved by its vertical rack 4S), which slides vertically in the guide 50 and meshes with the pinion 51. (Shown in Fig. 6.) This pinion is journaled by the shaft 52 on the frame, which also carries the sprocket 53.

The press-plate-receiving mechanism M consists of the truck C and the rack 55, having the head 5G. This rack slides in the guide 56 and meshes with the pinion 57 on the shaft 5S, which carries the sprocket 54. The sprockets 53 and 54 are adapted to revolve in the direction of the arrows shown in Fig. 1 by the sprocket 59 and chain 60. The relative sizes of the sprockets 53 and 54 are such as to raise the head 4S the thickness of the cake, press-plate, and double thickness of the cloth, while the head 56 lowers the thickness of one press-plate. This simultaneous raising and lowering of the heads is for the purpose of ejecting and stripping one cake at each forward movement and removing a plate to the press-truck C at each return movement of the ejector. The sprocket 59 is mounted on the drive-shaft 6l, which carries the drive-sprocket N. This drive-sprocket is revolved the distance between its teeth by the drive-bar G each time the chains 15 and 16 make a complete revolution. I have arranged two ratchet-escapemenls P and Q upon the shaft 61. The ratchet P consists of the toothed wheel 62 and dog 63 and prevents the backward revolution of the shaft by the weight of the cakes on the head 48. The ratchet Q, consists of a ratchet-Wheel 64 and dog 65, which is directed against its teeth so as to prevent the forward movement of the shaft except when the drive-bar G trips the dog from engagement with the teeth by its depending arm 66 and revolves the drivesprocket.

In operation the drive-bar is revolved continually in the direction of the arrows by the drive-pulley 22. The strokes of the drivebar cause the reciprocating movement of the carriage over the trucks. Assuming the carriage to be starting from the position shown in Fig. 1, the drive-bar trips the dog and revolves the drive-sprocket one tooth forward, thus raising the head 48 the thickness of a cake plus that of a press-plate and the double thickness of the cloth to the position shown in Fig. 3 and also dropping the head 56 the thickness of one press-plate. The carriage then moves forward and the ejector engages the cake 67 and slides it forward onto the receiver 68 to the position indicated in Fig. 4. During this movement the cloth is stripped from the cake and the carriagearm, impinging against the shoulder 41, slides the rack forward, thus winding the weighted cord onto the drum. During the return stroke of the carriage the shoulder 19 of the ejector engages the plate 69, as shown in Fig. 5, and removes the plate to the receiving mechanism, as shown in Fig. 1. The weighted cable also revolves the shaft 35, which causes the cloth stripped from the cake to wrap upon the roll 26 While the vejector is returning. This operation is repeated until all of the cakes on the truck B have been stripped and ejected and the plates removed and stacked onto the truck C. When completed the pressplates rest upon the top of the truck and the head 56 lis free. The bars 3 and 4 are then removed and the trucks rolled from the frame to the cake-forming machine. The cakes of meal as ejected from the truck and stripped of cloth may be carried from the receiver by hand or by an endless carrier. (Not shown.)

Having described my invention, what I claim as new, and desire to protect by Letters Patent, is-

1. An oil-cake-stripping machine, comprising in combination, mechanism for holding IIO oil-cakes having press-plates between themA vsaid frame, an ejector, carried by said carriage, adapted to remove a cake from said frame during its forward movement and a plate during its return movement, and drive mechanism for operating saidcarriage.

3.v An oil-cake-strip'ping machine, comprising in combination, mechanism for holding cakes havingpress-plates between them and cloth wrapped around each cake, and mechanism for removing said plates, ejecting said cakes and stripping the cloth simultaneously.

4. A machine of the class described, comprising inl combination, means for holding a stack of press-plates, each carrying an oilmeal cake wrapped in cloth, and mechanism for removing each cake from the plate which it rests upon, stripping the cloth therefrom and removing said plate from said stack.

5. An oilcake-stripping machine, comprising in combination with a holder for a stack of cakes, press-plates between the cakes and cloth wrapped around the cakes, mechanism for ejecting said cakes, stripping the cloth and removing the cakes from the stack.

6.`v A machine of the class described, comprising in combination with a holder for a stack of press-plates having cakes between them and cloth wrapped around each cake,

reciprocating mechanism adapted to eject the cakes from the stack and strip the cloth from the cakes, and means for removing a plate after each cake is ejected.

7. An oil-meal-cake stripping machine, comprising in combination, a holder for a stack of press-plates having cakes between them, a reciprocating ejector adapted to eject a cake during one movement, and remove a plate during its alternating movement.

8. An oilmealcake-.stripping machine, comprising in combination, a frame for holdinga stack of press-plates and cakes wrapped in cloth between said plates, and-mechanism for stripping the cloth and removing the plates. I

9. An oilmeal-cake-stripping machine, comprising in combination with means for holding a stack of press-plates and cakes havingcloth wrapped around the same, means' for successively removing the plates and cakes Afrom the stack and stripping the cloth.

10. An oil-meal-cake stripping machine, comprisingin combination, means for holding a stack of press-plates having cakes'between them and cloth Wrapped around the cakes,

an ejector, mechanism for reciprocating said ejector to remove and strip said cakes from said plates, and Ameans for feeding said plates and cakes into the path of said ejector.

1'1. lAn oil-mealcakestripping machine, comprising in combination, an ejector, means for reciprocating said ejector, means for holding press-plates having cakes between them,

and means for feeding the cakes and plates to said ejector.

12. An oil-meal-cake-stripping machine, consisting of mechanism for holding a series of plates and 'cakes having cloth wrapped around the same, an ejector by which* the cakes are removed from the plates and the cloth stripped from the cakes, a plunger by which the press-plates are fed to the ejector, a second plunger for receiving the pressplates from said ejector, means for operating said ejector and plungers, and take-up mechn anism for the cloth as it is stripped from the cakes.

13. A machine for stripping oil-meal cakes, comprising in combination, mechanismL for holding a stack of press-plates lhaving cakes l betweenthem and cloth wrapped around said cakes., Vpress-plate receiving mechanism M, cloth-take-up mechanism E and ejectin'g mechanism D; whereby, as the ejectingmechanism operates, a cake is ejected .from the plates, the cloth is stripped from said cake and wound, and the press-plate removed to the receiving mechanism.

14. A machine for stripping oil-meal cakes,

comprising in combination, aplunger for holding a seriesv of press-plates having cakes between them and cloth'wrapped around the cakes, a second rplunger for receiving "the press-plates,l an ejector, drive mechanism by which the ejector is reciprocated above said plungers, a truck for receiving the pressplates from said second plunger, mechanism for raising the irst plunger and lowering the second plunger as the ejector operates, and take-up mechanism for the cloth; said ejector adapted to removeacake from the first plunger and strip the cloth therefromduring-its forward movementand remove apre'ss-plate to the receiving-plunger when returning. f

15. In combinationzwith a pair of plungers,

one for holding a stack of cakes having pressplates between them and cloth wrapped -around said cakes, and the other for receiving the press-plates therefrom, mechanism for raising the rst plunger and lowering the i -second plunger,-means for ejecting the cakes and removing the plates onto the second plunger and means for winding lthe cloth,- and a truck adapted to receive lthe plates.

from the second plunger.

In testimony whereof I have signed `my name to this specification in-the presence of two subscribingwitnesses.

- EDGAR C. BISBEE. 4Witnesses: j

HELEN H. ONEILL, F. G. BRADBURY. 

